1.Obunene bw’okukozesa
(1). Esiigibwa ku kapiira atali mujjuvu: nga NR, BR, NBR, IR, SBR, n’ebirala.
(2). Siiga ku kapiira akajjudde: nga EPM esobola okufuuka vulcanized ne peroxide yokka, EPDM esobola vulcanized ne peroxide ne sulphur byombi.
(3). Esiigibwa ku kapiira ak’enjegere ak’enjawulo: nga Q vulcanization.
2. Ebifaananyi by’enkola ya peroxide vulcanization
(1). Ensengeka y’omukutu gwa kapiira aka vulcanized ye CC bond, nga erina amaanyi ga bond amangi, enywevu mu kemiko, era egumira bulungi okukaddiwa kw’ebbugumu ne oxygen.
(2). Vulcanized rubber erina okukyukakyuka okw’olubeerera okutono, elasticity ennungi ate nga tekola bulungi dynamic.
(3). Obukuumi obubi mu kulongoosa ne peroxide ow’ebbeeyi.
(4). Mu static sealing oba high temperature static sealing ebintu birina enkola nnyingi.
3.Perokisayidi ezitera okukozesebwa
Ebirungo ebitera okukozesebwa mu kukola vulcanizing peroxide ye alkyl peroxides, diacyl peroxides (dibenzoyl peroxide (BPO)) ne peroxy esters. Mu byo, dialkyl peroxides zikozesebwa nnyo. Nga: diisopropyl peroxide (DCP): mu kiseera kino kye kisinga okukozesebwa ekirungo ekifuula vulcanizing agent.
2,5-dimethyl-2,5-(di-tert-butylperoxy) hexane: era amanyiddwa nga bis-dipentyl
4. Enkola y’okufuula peroxide vulcanization
Ekibinja kya perokisayidi ekya perokisayidi kyangu okuvunda olw’ebbugumu okuvaamu ebiwujjo eby’eddembe, ebivaako enkola y’okusalasala ey’ekika kya radikali ez’eddembe ey’olujegere lwa molekyu za kapiira.
5. Ensonga enkulu ezikwata ku peroxide vulcanization:
(1). Omuwendo: gwawukana okusinziira ku bika bya kapiira eby’enjawulo
Obulung’amu bw’okuyunga perokisayidi: Molekyulu ya 1g eya perokisayidi ey’obutonde esobola okukola gram mmeka eza molekyu za kapiira ezikola okusalasala kw’eddagala.Singa molekyu 1 eya perokisayidi esobola okukola molekyu za kapiira 1g eziyungibwa, obulungi bw’okuyunga buba 1.
Okugeza: obulungi bw’okusalasala (cross-linking efficiency) bwa SBR buli 12.5; obulungi bw’okusalasala (cross-linking efficiency) bwa BR buli 10.5; obulungi bw’okusalasala kwa EPDM, NBR, NR buli 1; obulungi bw’okusalasala (cross-linking efficiency) bwa IIR buli 0.
(2). Okukozesa ekirungo ekikola n’ekirungo ekigatta ekibiriiti okulongoosa obulungi bw’okuyunga
Omulimu gwa ZnO kwe kulongoosa obuziyiza bw’ebbugumu obw’ekisiiga, so si ekirungo ekikola. Omulimu gwa asidi wa stearic kwe kulongoosa okusaanuuka n’okusaasaana kwa ZnO mu kapiira. HVA-2 (N,N’-phthalimido-dimaleimide) nayo ekola bulungi ku peroxide.
Okwongerako ekirungo ekiyamba ku vulcanizing: okusinga ekya kiragala kya sulfur, n’ebirungo ebirala ebiyamba okusalasala nga divinylbenzene, trialkyltricyanate, unsaturated carboxylates, n’ebirala.
(3). Oteekamu ebintu ebitono ebya alkaline, nga MgO, triethanolamine, n’ebirala, okulongoosa obulungi bw’okuyunga, okwewala okukozesa slot carbon black ne silica n’ebintu ebirala ebijjuza asidi (acid okukola free radicals passivation); antioxidants okutwalira awamu amine ne phenolic antioxidants, era nga nnyangu okukola free radicals pasivation, okukendeeza ku bulungibwansi bw’okusalasala, zirina okukozesebwa mu ngeri entono.
(4). Ebbugumu ly’okuvunda: lirina okuba waggulu okusinga ebbugumu ly’okuvunda kwa perokisayidi
(5). Obudde bwa Vulcanization: okutwalira awamu emirundi 6 ~ 10 egy'ekitundu ky'obulamu bwa peroxide.
Ekitundu ky’obulamu bwa perokisayidi: ku bbugumu erigere, okuvunda kwa perokisayidi okutuuka ku kitundu ky’obungi obw’olubereberye obw’ekiseera ekyetaagisa, okulagibwa mu t1/2.
Singa ekitundu ky’obulamu bwa DCP ku 170°C kiba ddakiika 1, olwo obudde bwayo obw’okufuuka sulphation obulungi bulina okuba eddakiika 6~10.
Ekyokulabirako ky’okukola: EPDM 100 (omusingi) .
S 0.2 (ekirungo ekiyamba okukola vulcanizing) .
SA 0.5 (ekikola) .
ZnO 5.0 (okulongoosa okuziyiza ebbugumu) .
HAF 50 (ekirungo ekinyweza) .
DCP 3.0 (Ekirungo ekiziyiza obuwuka obuleeta endwadde) .
MgO 2.0 (Erongoosa obulungi bw’okuyunga okusalasala)
Amafuta agakola 10 (ekigonza) .
